121431422 has 32 divisors (see below), whose sum is σ = 215732160. Its totient is φ = 50181120.

The previous prime is 121431383. The next prime is 121431461. The reversal of 121431422 is 224134121.

It is an interprime number because it is at equal distance from previous prime (121431383) and next prime (121431461).

It is a junction number, because it is equal to n+sod(n) for n = 121431394 and 121431403.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 49898 + ... + 52274.

It is an arithmetic number, because the mean of its divisors is an integer number (6741630).

Almost surely, 2^121431422 is an apocalyptic number.

121431422 is a deficient number, since it is larger than the sum of its proper divisors (94300738).

121431422 is a wasteful number, since it uses less digits than its factorization.

121431422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2516.

The product of its digits is 384, while the sum is 20.

The square root of 121431422 is about 11019.5926421987. The cubic root of 121431422 is about 495.1958847897.

Adding to 121431422 its reverse (224134121), we get a palindrome (345565543).

The spelling of 121431422 in words is "one hundred twenty-one million, four hundred thirty-one thousand, four hundred twenty-two".